i have young chickies, maybe a couple of months old, not laying yet. they seem very healthy but once a week we find a chicken dead. for the most part, no one has seemed ill beforehand. everyone seems to be running around and eating but you go out the next day and find her dead in the chickie house. they get the starter scratch still but are beginning to be "weaned" to laying pellets. they also get the extra large cukes and scraps from the veggie garden. help!